Gas-lighting device.



C. F. MASON.

GAS LIGHTING DEVICE.- APPLICATION FILED MAY 7, 1910.

1,127,477, Patented Feb. 9, 1915.

2 SHEETS-SHEET 1.

THE NORRISYFETERS m. FHOT frl-ITHQ. WASHINGTON, lj.

G. F. MASON.

GAS LIGHTING DEVICE.

APPLICATION FILED MAY 7, 1910.

1,127,477. Patented Feb. 9, 1915.

2 SHEETSSHEET 2.

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4 2 QQZWWMM 7HE NORRIS PETERS CO.. PHOTO-LITHO.. WASHING TON, D. C.

CHARLES F. Mason, or CORTLAND, new roan.

GAS-LIGl-ITING DEVICE.

Specification of Letters Patent.

Patented Feb. 9, 1915,,

Application filed May 7, 1910. Serial No. 559,904.

To all whom, it may concern it known that I, CHARLES F. MASON, a citizen of the United States, and a resident of Cortland, Cortland county, State of New York, have invented certain new and useful Improvements in Gas-Lighting Devices, of which the following is a specification.

. This invention relates to gas lighting devices with particular reference to systems such as described in my companion application filed simultaneously herewith, in which special lamps or burners designed to be lighted and extinguished from a remote point, as, for example, the supply station, and other lamps not designed to be under such control, are fed by a common main, carrying a constant flow of gas; such special lamps being adapted to be operated at will by varying the pressure inthesupply main, without affecting the operativeness of i the other lamps.

The object of this inventionis to provide a lamp, simple in construction and operation and cheap to manufacture, which may be lighted by temporarily raising the pressure of gas in the mains above the normal working pressure, and. extinguished by again temporarily raising such pressure, after burning the gas at normal-pressure. This and other objects of the invention will in part be obvious and in part explained in the following description.

The invention consists in the novel improvements, parts, and combinations of parts herein shown and described.

In the accompanying drawings which form a part of this specification, is illustrated one embodiment of the invention, the same serving to exemplify the principles thereof.

Of the drawings: Figure l is a vertical sectional view through a lamp embodying my invention; Fig. 2 is a similar View illustrating another position of parts; F1g. 3 1s a sectional view through the casing of the lamp and showing certain interior elements in plan; Fig. l is a detail sectional view of a burner; Fig. 5 is a similar view of a modiiied form of burner, and Figs. 6, and 8 are details illustrating successive positions of a retaining device. 7

In carrying out my invention I employ an inverted bell open to the gas main and sealed in a suitable body of liquid, a burner tube also sealed in said liquid, a constantly burning pilot flame, and a retaining device;

said bell being adapted to resist the gas at normal working pressure and to yield to an increase of pressure above normal; the dis placement of said bell serving to break the seal of said burner tube, and the retaining device serving to maintain the displaced condition of the bell during the burning operation of the lamp until it is required to extinguish said lamp.

Referring to the drawings by numerals in which similar characters denote corresponding parts throughout the several views, 1 representsa receptacle or tank, closed at the top and bottom by caps 2 and 2, respectively, the former being removable and the latter having a socket 3 adapted to receive the threaded end of a supply pipe 4-, connected with the gas mains or other suitable source of supply of illuminating An inverted bell 5 is inclosed by said tank 1, and carries a burner tube 6 projecting interiorly as well as exteriorly of said bell. This burner tube 6 carries at its upper end which projects through an opening 7 in cap 2, a suitable burner 8, and an igniter 9, which latter will be described more fully hereinafter.

The. burner tube 6 which projects well within the bell, is open at its lower end and is preferably further provided with a lateral opening 6 located just above said lower end; said tube being centrally located with respect to hell 5 and surrounding the verticalportion of a smaller tube or pipe '10 leading to the outside of tank 1 where it is provided with a movable cap 11. A second pipe 12 located interiorly of'the bell and rising nearly to the top thereof (Fig. 1) communicates at its lower end with pipe ,4, and is designed to admit gas to the bell at all times.

14 represents an auxiliary burner-pipe of small bore, located interiorly of burner pipe 6 and having its lower end bent at an angle and projected through'the side of said tube into the upper interior of said bell. The upper part of pipe 14 communicates with a reducing or regulating device 15 provided with an adjusting screw 16, and, continuing on, terminates at or just above the threaded nipple 17 at the extreme end of burner 6.

,As shown in Fig. 4, burner tube 6 is fitted with a detachable adapter 18 comprising a hollow tubular body or thimble having a threaded nipple 19 at one end thereof, a threaded socketLO, at the other end thereof,

and supporting a pipe 21 of small bore. 'An elongated portion of said pipe 21 extends vertically along the exterior of adapter 1.8 bends inwardly at 21 and again extends vertically through the center of said adapter terminating in an enlarged and somewhat flaring socket 22 which engages telescopically with the projecting end 14: of pipe 141. Burner 8 which may be of any ordinary standard design, is screwed to nipple 19, as shown; and pipe 21 is so positioned that a small pilot flame, which in practice burns constantly at the end of said pipe, will be projected into the path of any gas escaping through said burner 8, and ignite the same. This construction, it should be noted, admits of the use of standard burners and the convenient removal and replacement thereof without disturbing the pilot burner or other parts of the lamp.

Fig. 5 illustrates the manner in which a burner of entirely different design may be applied to'the same burner tube 6. In this case the adapter 18 is dispensed with, and the thimble 18 substituted therefor, said thimble supporting a burner 8 having a pilot tube 21 supported interiorly thereof and telescoping with pipe 1 1 in the same manner as before described; this style of burner being designed for use with a mantle, not shown.

The tank 1 contains a body 30 of suitable liquid which may be supplied to the tanks through the vertical tube 410 rising from the cap 2 near the edge thereof and provided with a removable cover, which may be perforated to admit air while excluding dust and dirt. In filling the tank, cap 11 is removed and liquid admitted to the tank until it begins to flow out of pipe 10, when the cap may be replaced; the overflow indicating that a proper working level has been reached.

It will be observed that the liquid level in the tank proper and burner tube 6 are the same since these parts are both open to the atmosphere, the former through tube 40 and the latter through the valveless burner 8. The level in the bell 5, however, is lower because of the pressure of gas and air in the upper closed portion of said bell, but high enough to seal the openings in the lower end of the burner-tube 6. The weight of the bell is sufficient to resist the gas at the normal working pressure thereof, so that while the upper interior of the bell is constantly filled with gas which can escape only through the pilot tube, the bell will remain in the position shown in Fig. 1, resting on the bottom of tank 1.

To operate the lamp the pressure in the mains will be raised in any desired manner, but not herein set forth since this feature forms no part of the present invention. Accordingly the bell will rise, carrying the tube 6 with it. As soon as the opening 6 passes the level of the liquid in the bell, the seal will be broken, the liquid escaping and establishing a free passage for the gas therethrough which, of course, will be ignited as soon as it begins to flow through burner 8.

In order to sustain the bell in elevated position so that gas may continue to flow to the burner 8 even after the excess pressure has been relieved and normal working pressure restored, I provide the following mechanisms: A spring 50 is secured at one end to an eye 51 in. the upper outer surface of bell 5 and at the other end to an eye 52 on the under surface of cap 2, said spring making a partial turn spirally about tube 6 and serving to exert a twisting force on bell 5, tending to rotate said bell clock-wise as it rises and in the reverse direction as it falls. arm 53 rises from the top of the bell and enters the tube 40, said arm having a detent 5 1 projecting angularly therefrom. Arm 53 is mounted in line with tube 40 which incloses a ring 55 supporting a wedge-shaped guide 56, best shown in Figs. 6, 7 and 8;

said guide comprising a pointed lower end,

a substantially vertical edge 57, a widened upper end 58, notched as at 59, and a defleeting flange 60 located adjacent said notch. When the bell rises, the detent 5& will be carried upwardly in tube 4.0, riding against the edge 57 and resisting the tendency of bell 5 to rotate under the influence of spring 50, until said detent has been car- 3 ried beyond the upper end of the guide, whereupon it will be caused to snap against flange 60. In this position the gas will be burning at high pressure and the bell supported by the gas, see Fig. 2. When the 1;

pressure is lowered to normal, the bell will drop by gravity until the detent 54 engages the notch 59 and arrests further downward movement. The bell, therefore, will be mechanically supported by said detent,1

which will retain the parts in such operating relation even though the pressure through accident or otherwise should fall below the normal working pressure. To extinguish the lamp the pressure will again be raised. This time the detent 54: will be caused to pass to the left of flange 60 (Fig. 7 or in the direction of the arrow (Fig. 3), so that as said finger emerges from the notch, spring 50 will be permitted to swing the bell to the limit of its movement clockwise and free the detent from the guide entirely. The pressure being again lowered the bell will drop to the position shown in Fig. 1 reestablishing the seal in tube 6 and restoring the parts to position for another operatlon. Ring 55 serves to limit the right and left swing of the bell by engaging the arm 58; and the cross bar 70 which has a central opening 71 therein surrounding tube 10 serves to steady the bell in its vertical movements. A ring 7 2 is centrally mounted on bell 5 and forms between itself and tube 6 a pocket into which a desired quantity of lead may be placed to adjust the weight of .the bell relative to the gas pressure employed.

The invention, in its broader aspects, is not limited to the particular construction shown, as many changes may be made in the details without departing from the main principles of the invention or sacrificing its chief advantages.

What I claim is:

An apparatus of the class described including in combination, a receptacle containing a suitable liquid, a vertically movable bell sealed in said liquid, a gas supply pipe communicating with said bell above said liquid, said bell being weighted to resist a low pressure of gas and to rise under a higher pressure thereof, a burner, a burner tube adapted to be sealed when the bell is in its lower position and to be unsealed when the bell is raised, a spring having one end thereof attached to said bell and the other end thereof attached to a stationary part of the receptacle and adapted to exert a rotative force upon said bell when the latter moves vertically, a detent carried by said bell, a notched stationary guide and deflector adapted to cooperate with said detent to alternately detain said bell in its raised position and permit the bell to fall during alternate temporary increases and reductions in the gas pressure, and means for igniting the gas issuing from said burner.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

CHARLES F. MASON.

, Witnesses:

FLOYD L. RELYEA, CHARLES H. IRISH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

